Executive Team

Joseph K. Belanoff, MD

Chief Executive Officer, President and Director

Dr. Belanoff is the co-founder of Corcept Therapeutics and has served as a member of its Board and as its Chief Executive Officer since 1999. In 2014, he was also appointed President. Dr. Belanoff is currently a clinical faculty member and has held various positions in the Department of Psychiatry and Behavioral Sciences at Stanford University since 1992. Dr. Belanoff received his BA from Amherst College and his MD from Columbia University’s College of Physicians & Surgeons.

Amy Flood

Chief Human Resources and Communications Officer

Ms. Flood joined Corcept as Chief Human Resources and Communications Officer in July 2021. She brings nearly 25 years of experience in communications, team development and culture building within the biopharmaceutical industry. Ms. Flood previously spent 21 years at Gilead Sciences, most recently as Senior Vice President, Public Affairs, where she led a global team responsible for corporate brand, employee communications, product public relations, advocacy and philanthropy. While at Gilead she also led company-wide efforts to expand professional development opportunities for women, a targeted team mentoring and development initiative, and multiple programs focused on diversity, equity and inclusion. Prior to joining Gilead, Ms. Flood worked in healthcare public relations in New York, relocating to San Francisco to help establish her firm’s West Coast operations. She is a member of the board of Point Source Youth, a national non-profit dedicated to ending youth homelessness. She is a graduate of Johns Hopkins University.

William (Bill) Guyer, PharmD

Chief Development Officer

Dr. Guyer joined Corcept as its Chief Development Officer in August 2021. He brings more than 30 years of medical and clinical experience to the role, including nearly 20 years in positions of increasing seniority at Gilead Sciences. From 2015-2021, he served as Senior Vice President of Gilead’s global Medical Affairs team, with responsibility for developing innovative strategies for advancing compounds from discovery to commercialization in a wide range of complex diseases, including infectious diseases, liver diseases, cancer and inflammatory disorders. His work included designing, implementing and supporting company- and investigator-sponsored studies, collaborative studies, real-world data generation and health outcomes research, as well as scientific and medical communications and education programs across Gilead’s entire portfolio of medications.Prior to joining Gilead, Dr. Guyer was the Director of the HIV Pharmacy and Outpatient Infusion Center Services for Kaiser Permanente in Southern California. He is a clinical pharmacist and holds a PharmD from the University of Southern California.

Hazel Hunt, PhD

Chief Scientific Officer

Dr. Hunt was named Corcept’s Chief Scientific Officer in 2020 serving, prior to that, as its Senior Vice President, Research. Dr. Hunt joined Corcept in 2011, bringing with her more than 23 years of experience in the pharmaceutical and biotechnology industries. From 2002 to 2011, Dr. Hunt was Director of Chemistry and Operations at Argenta, where she worked closely with Corcept and played an integral role in the discovery of Corcept’s portfolio of next-generation selective GR antagonists. From 1994 to 2002, she worked for Celltech, initially as a Group Leader in Medicinal Chemistry and ultimately as Section Leader, Project Chemistry. From 1992 to 1994, she served as a Research Fellow at The Centre for Drug Design and Development. Before that Dr. Hunt worked at Glaxo Group Research as a Senior Chemist in Medicinal Chemistry. Dr. Hunt received a first-class honors degree in chemistry from the Australian National University and a PhD in synthetic organic chemistry from the University of Southampton, UK. She also carried out postdoctoral work at Oxford University and the University of California at Irvine.

Sean Maduck

Chief Commercial Officer

Mr. Maduck was named Corcept’s Chief Commercial Officer in 2020. Prior to that he was Corcept’s Senior Vice President, Commercial. Before that, he was the company’s Vice President, Sales & Marketing. Mr. Maduck joined Corcept in 2012, bringing to the company 12 years of pharmaceutical, biotechnology and management experience. From 2002 to 2012, he held positions in the Finance, Portfolio Planning and Commercial functions at Genentech. Prior to Genentech, he was an investment banking analyst at W.R. Hambrecht + Company. He currently serves on the Board of Directors of the Cancer Support Community – San Francisco Bay Area. Mr. Maduck earned an AB from Dartmouth College, a BE in Biomedical Engineering from the Thayer School of Engineering at Dartmouth College and a Masters in Management from the Stanford Graduate School of Business.

Atabak Mokari

Chief Financial Officer

Mr. Mokari joined Corcept as Chief Financial Officer in March 2021. He brings to the company nearly 20 years of leadership experience in life sciences and healthcare finance. From 2018 to 2020, he was Chief Financial Officer and Vice President of Corporate Development at Bellicum Pharmaceuticals, Inc. He served in the same capacity from 2016 to 2018 at medical device manufacturer IRIDEX. Mr. Mokari was a director at Wells Fargo Securities LLC’s healthcare investment banking group from 2013 to 2016, at UBS’s healthcare investment banking group from 2009 to 2013 and at Credit Suisse’s healthcare investment banking group from 2005 to 2009. Prior to that, he was a member of the business development team at Forest Laboratories, a pharmaceutical company, and an analyst at the private equity firm Olympus Partners and the investment banking firm Bowles Hollowell Conner & Co. Mr. Mokari earned an MBA from The Tuck School of Business at Dartmouth and a B.S. in Chemistry and Biology from Duke University.

Charles Robb

Chief Business Officer

Mr. Robb became Corcept’s Chief Business Officer in March 2021 after serving more than nine years as the company’s Chief Financial Officer. Mr. Robb has more than 30 years of experience in executive management, operations and finance. From April 2005 through August 2011, Mr. Robb served as the Senior Vice President of Operations, Administration and Finance of Fitness Anywhere, Inc., a fitness equipment and training company with operations in the United States, Europe and Asia. From 2003 to 2005, Mr. Robb was engaged in the private practice of law. From 2000 to 2002, he was Senior Vice President of Citadon, Inc. He also held positions in business development for Nomura Asset Capital Corporation from 1998 to 1999 and in sales and marketing for Legal Research Network, Inc., from 1996 to 1998. From 1992 to 1996, Mr. Robb practiced law at Howard, Rice, Nemerovski, Canady, Falk & Rabkin. Mr. Robb earned a BA in English and Political Philosophy from Yale and a JD from Harvard Law School, where he was a member of the Harvard Law Review.